Home / 68,280.30-102,457.17-65,795.00

Finding the Fourth Proportional to 68,280.30, 102,457.17 and 65,795.00

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Solution

The fourth proportional to 68,280.30, 102,457.17 and 65,795.00 is: 98,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,280.30 : 102,457.17 = 65,795.00 : x
  2. Step 2: Convert to fraction form
    68,280.30/102,457.17 = 65,795.00/x
  3. Step 3: Cross multiply
    68,280.30x = 102,457.17 × 65,795.00
  4. Step 4: Simplify right side
    68,280.30x = 6,741,168,987.86
  5. Step 5: Solve for x
    x = 6,741,168,987.86/68,280.30
  6. Step 6: Final answer
    x = 98,727.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.